 nasm -I include/ -o mbr.bin mbr.S  && nasm -I include/ -o loader.bin loader.S  && dd if=./mbr.bin of=./hd60M.img bs=512 count=1  conv=notrunc && dd if=./loader.bin of=./hd60M.img bs=512 count=1 seek=2 conv=notrunc
